linux-kernel - [PATCH 0/3] de_thread() should update ->real_start

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20130610183300.GA14379@redhat.com>
Date:	Mon, 10 Jun 2013 20:33:00 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	John Stultz <johnstul@...ibm.com>,
	Tomas Janousek <tjanouse@...hat.com>,
	Tomas Smetana <tsmetana@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/3] de_thread() should update ->real_start_time

1/3 is the obvious bugfix, 2 and 3 are minor cleanups

I am wondering, can't we kill task->real_start_time? What if we
simply change copy_process

	-	do_posix_clock_monotonic_gettime(&p->start_time);
	+	get_monotonic_boottime(&p->start_time);

?

Afaics, this will only affect do_acct_process() and bacct_add_tsk(),
but do we really want to exclude the suspended time in this case?


Another user of ->start_time is cgroup.c and it looks wrong... But
the change above should not make any difference.

Oleg.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/